Portable charger



FIG. 1 is a front elevational view of a portable charger, showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left-side elevational view thereof;

FIG. 4 is a right-side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines in the figures are included for the purpose of illustrating portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for a portable charger, as shown and described. 